Xi'an Longjoy Foreign Trade Co.,Ltd
Xi'an Longjoy Foreign Trade Co., Ltd
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Long welding neck flange has a high neck height, which improves the stiffness and bearing capacity of the flange.
Long welding neck flange, Compared with butt welding flange, the welding workload is large, the consumption of welding rod is high, and can not withstand high temperature and high pressure, repeated bending and temperature fluctuation. However, the on-site installation is more convenient, and the process of weld patting and kneading can be omitted.
Diameter: DN15 - DN
Material: SS304, SS316
Pressure:Class150-2500
Standards: ASTM / ANSI, ISO, DIN
ASME B16.5 A105 Stainless Steel Flanges Long welding neck flange technical data sheet as below:
| Nominal Pipe Size | Out side Diameter | O.D of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Thickness of Flange Min. | Length Through Hub |
| D | G | E | B | t | L | |
| 1/2 | 89 | 35.1 | 30.2 | 12.7 | 11.2 | 228.6 |
| 3/4 | 99 | 42.9 | 38.1 | 19.1 | 12.7 | 228.6 |
| 1 | 108 | 50.8 | 50.8 | 25 | 11.2 | 228.6 |
| 11/4 | 117 | 63.5 | 60.5 | 31.8 | 15.7 | 228.6 |
| 11/2 | 127 | 73.2 | 66.5 | 38.1 | 17.5 | 228.6 |
| 2 | 152 | 91.9 | 82.6 | 50.8 | 19.1 | 228.6 |
| 21/2 | 178 | 104.6 | 95.3 | 63.5 | 22.4 | 228.6 |
| 3 | 191 | 127.0 | 108.0 | 76 | 23.9 | 228.6 |
| 31/2 | 216 | 139.7 | 124.0 | 88.9 | 23.9 | 228.6 |
| 4 | 229 | 157 | 139.7 | 101.6 | 23.9 | 304.8 |
| 5 | 254 | 185.7 | 165.1 | 127.0 | 23.9 | 304.8 |
| 6 | 279 | 215.9 | 196.9 | 152 | 25.4 | 304.8 |
| 8 | 343 | 269.7 | 247.7 | 203.2 | 28.4 | 304.8 |
| 10 | 406 | 323.9 | 304.8 | 254.0 | 30.2 | 304.8 |
Connection mode: flange nut, bolt connection
Manufacturing standard: Hg / t20615-2009, ASME B 16.5
Production technology: professional overall forging, forging manufacturing, etc
Processing mode: high precision CNC lathe turning, ordinary lathe finishing, etc
Long welding neck flange is widely used in petroleum, chemical industry, hydropower, pharmaceutical, metallurgy, chemical fiber, refrigeration and other industries.
